In itself, this part is absolutely fine. The battery can be used easily and then you have to turn it only outside and push the button to make it go. 3 stars there is that the part is not as expected firmly bite somewhere and on the other hand rolls, as I expected. It comes across again and again produced, it was even behind the sofa and after a few seconds it rolled out again and it always takes new routes.
Only 3 stars there, because my cat has too much afraid of the thing. It is otherwise not as a coward, and if the part is made, he sniffs it and also nudges with his paw on it. But once the part is on, it's too loud noises and the hangover will disappear after maximum of 5 minutes out of the room, because the ball came rolling toward him.
